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Light
On Earth, our main source of light is the Sun. Solar radiation, or sunlight, provides the energy for photosynthesis – plants create sugars, which when digested, release energy.
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How Gravity Works
How Gravity Works Hi, I’m Rachel. The Astronomer at the Space Centre. Just old enough to walk, I vividly remember sitting on my brother’s toy fire truck, honking the horn and generally just having the time of my life; that is, until my brother came along, shoved me off, and I went tumbling to the…
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Our Place in the Universe
Astronomers have different ways to measure distances depending on how far away the object is.